BALL VALVE Russian patent published in 2020 - IPC F16K5/06 F16K11/22 

FIELD: pipelines.

SUBSTANCE: invention relates to pipeline shutoff and control valves mainly for medium and high pressures and temperatures and with metal-to-metal contact. Ball valve comprises a body with inlet and outlet branch pipes, in which there is a shut-off element with a passage channel in the form of a ball or a ball segment with a lower rotation support and with an upper rotation support installed in the eccentric bushing, resilient or rigid spring-loaded seats with a seal, limiters of rotation angle of the shut-off element and the bushing, besides, the lower support of rotation is also installed in the eccentric bushing, and the bushings are rigidly connected to each other as an integral part of the communication element outside or inside the housing.

EFFECT: proposed ball shutoff-control tap valve is pipeline valves of half-turn action with separate phase of change of flow section by contact-free turning of shutoff element and phase of gap sealing by parallel micrometre shift of shutoff element orthogonally to plane of seat.

3 cl, 12 dwg